Turntable lifting jack generally for motor road vehicles and the like



Sept. 23. 19.24.

H. s. KEIGHTLEY ET AL TURNTABLE LIFTING JACK GENERALLY FOR MOTOR ROAD VEHICLES AND THE LIKE Filed May '2, '1923 3 Sheets--Shee l Sepia p H. S.` KEIGHTLEY ET AL TURNTABLE LIFITING JACK vGENERALLY FOR MOTOR ROAD VEHICLES AND THE LIKE Filed May 7. 1923 3 Sheets-Sheet 2 l /m/f/vrO/vs HENRY /l/f/GHTLEK G50/PGE A. GOF/PEK' ffm/5.

sept. 2s, 19m. 1509212 H. S. KEIGHTLEY ET AL TURNTABLE LIFTING JACK GENERALLY FOR MOTOR ROAD VEHICLES AND THE LIKE Filed May 7, 1923 3 Sheets-Sheet 3 Patented Sept. 23, 1924.

Us@ e TES istria HENRY STUART KEIGHTLEY AND GEORGE ARTHUR GODEREY, or NEWcAs'rLEAoN- 1 TYNE, ENGLAND. l

v TURNTABLE LIETING ACR GENEEALLY Eon MoToRRoAD- VEHICLES AND THE LIKE.

Application mea May 7,

ing to `be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to c make and use the'same. Q

This invention relates Ato improvements in lifting jacks, generally for;vehicles, motor and the like, andhas for its object to pro- `vide a convenient and readily accessible appliance, capable eitherof being carried in a position ready for immedate yuse and for lifting the vehicle platform stage or such similar suitable body to whichit may be attached, bodily olf the ground, or as a port.- able device capable of achieving` the same results, which may bereadily and conveniently moved from place to place. s

VA further object of'thisinvention is to enable the vehicle, platform stage or such similar suitable body to be turned completely in a horizontal plane with a small amount of effort. A lifting vjack according to the present invention, comprises a body part from a `portion ofV which radiate arms `adapted to be connected to the frame or axles of a vehicle, platform stage or such similar suitable body, preferably` but not necessarily employing legs adapted to be engaged with the ground and connectedl to another portion of said body part, and means for movingsaid former portion `vertically relative to the said latter portion. Ac- ,cording to anv embodiment of our invention `the said arms mayberotated in ahorizontal plane whereby the vehicle, platform stage or such similar suitable body, when clear of theground maybe turned ina horizontal plane. L

In order that our invention may be' clearly understood-and readily carried into effect, Aan embodiment of-same `ris described heret after by the aid of the accompanying sheets y of drawingsand for, the purpose of easy illlustration only, the invention is shown as a 1923. serial N. 637,215.

fixed component to an ordinary motor vehicle wherein c Fig. 1 is a sectional side elevational view.

Fig. 2 is a plan view.

Figs. 3 and 4 are sideelevation and inverted plan views respectively, illustrating the preferred disposition of the appliance.

Fig. 5 is a detail view of one of the feet for the legs, and

Fig. 6 is a detail view illustrating the application of the dual, safety and' antitheft attachment.

Referring tothe drawings, the body part of the jack comprisestwo relatively movable parts upper and lower, 1" and 2 respectively. The lower part 2 comprises a shallow cylindrical housing 3 having a cover plate 4 fixedly secured thereto, whilst the upper portion 1 comprises a collar 5, the base of which constitutes a truncated conical flanged portion 6 the purpose of which will hereinafter be apparent. The collar 5 is provided concentrically with a bush 7 whichprovides a bearing for a rotatable` elevating nut 8 threaded on to a normally non-rotating elevating screw 9. The base of the elevating nut 8 has threaded on to it an annular locking ring ornut 10 which prevent relative axial movement of the said nut 8 relatively to the collar 5. The elevating nut 8 is provided on its upper face with a toothed wheel 11 which is meshed by a pinion 12 carried at the inner end of the shaft 18 of an elevating handwheel 14, such shaft 13 being supported at its inner end in a bearing 15 carried bya bracket 16 secured to or formed integrally with the collar 5, whilst such shaft is supported adjacent its outer end by a bracket 17 secured to the frame of the vehicle.

i The upper part 1 is normally prevented Vfrom rotating relatively to the lower part 2 by means of a vertical locking pin 18 which passes slidably through the truncated conical portion 6 and engages one of a plurality of short radial slots 19 formedy in the periphery of the coverplate 4. `The upper end of this pin 18 carries a bifurcated portion having a pin and slot connection with a cranked lever 20'the upper end of which is pivotally `connected to the bifurcated inner end of a horizontal slidable rod 21 passing below the bracket 17. The outer extremity of the rod 21 is cranked at 22 Where it is connected to the shaft 13 by means of a cols lar 21, andthe shaft 13 isdivided into two parts, a main part 13, and a handwheel hub part 13b to which latter part the collar 212L is rotatably attached. y

The opposing ends of the parts 13a and 13b are normally engaged by means of a dog: formed on the endA of one and engaging a recess formed in the end of the other, as clearly shown, and When itis desired to disengage the locking pin 18 all that it is nec# es'sary todo is `to `pull thehand Wheel 121 outwards. y l. v`

' The upper' portion 1l oit' the body' part is adapted to be connected' permanently or detachably with thel chassis' or u-n'deilrame of the vehicle, and for this purposev radiating arms 25l areprovided, secured at their" inner l ends to the collar 5 and adapted to be se- 4of the'V vehicle.

cured at their outer ends by bolts, clamps or other'convenientmeans -to a convenient part These arms are preferably, but not essentially, VT'shaped in cross section for the' purpose ot strength and rigidity;

The. axles carrying the Wheels are lifted uniformly With the vehicle through themedium of four tie rods 1, one for each Wheel. The Iupper end of each lrod 1 is secured into a bifurcated end piece K Which is connected to a lug J allo-Wing Vpivotal action and Whichis fixed conveniently to the i'ram'e. The lower end of each rod 1 is turned under 4its associated axle and extended through a bracket 0l bolted to' ythe axle, nuts r being thread-ed on the free ends oi the rods to hold them po'sitionand coil springs `liti being tted over the turned under portions'to take' any road shocks in a manner which is obvious.

When the jack is in use, legs 26 are adapted to be engaged vWith the ground, such legs being pivotally connected at their inner ends to the housing 3, and normally maintained clear of the ground in a substantially hor'i` zontal position by being engaged with the inner face of the truncated conical'portion 6, as clearly slioivn in Fig. 1, the inner ends of these legs being provided With lears or lugs 27 adapted to engagev against such inner face.

These ears or lugsv are so curved or other- Wise conveniently shaped that When the parte 1 and 2 move 'awayffrom each other the legs Will move downwards about their pivots until slots 28 formed at their inner underneath 'ends engage over an annular 29 formed on the under faceofthehoueing S, the reverse action occurring When the parts 1 and 2 move towards each other.

t It will lbe apparent Vby,reference to Fig. `1 lofi the dravvings, `that by rotating the elevating hut 8, itivill'move in a vertical direction uponthe screw 9 and Will carry the collar 5 With it, so that yWhen the legsrengage the ground the deviceacts as a jack. Should it be desired tol rotate the vehicle in al horizontal plane the locking pin 18 is lifted clear oi' the cover platee the appa-v ratus provided for such purpose, and. the upper part 1 can then be rotated axially relatively to the lower part.V To facilitate the'turning action,v ball@V or roller bea-.rings 30 are provided between a `flanged boss 31 keyed to the elevating screw 9 and the base of the housing 3, annular bearingsrings or races 32 being provided or'engagement by the balls or rollers. The lower ends. oiithe legs 26 are preferably" providedV ivith feet 33 as shovv'n in' Fig'. 51 whereby a. good gripping actionz is ensured, such eeteach hai'fmg a ball and socket connection v'vithv thebas'e foot. Airy convenient numberxot legs from three' upwards :may lhe provided, in'A order to ensure substantial support so that thevehi'cle Wil-'l not easily tilt When beingturned.

lt' Will be apparenittliat if desiredfthe ele'- vatiirg nut may be rotated by mechanism extending through the floor' ofithe vehicle i'n a vertical or similar mfanner, which Would enable the operator" to yWerk the operating liandwheel trominside the vehicle. It Will be further apparent' that the-armsi-25 Will have/Va bracing effect uponwthechassie or iframe of the vehicle i-they arefpernianently Y attached thereto. L i p Figure 6 shoivs a device forming a connection between the. non-rotatingelevating screw 9 and the change-speed gate,` of the vgear box; Ey turning' the operating handlill) Wheel le, which lovverslthe elevatingiscrevv 9, the link is "pulled back just alsuihcient distance only to force the duplicate change speed gate to goiorW'a-rd or backwards as convenient, through the medium of ythe lever Y f, fulcrumed at g, the distance necessary to entirely and effectively cover the slots or leads in which the" change speed lever has to be directed in order to engage the gears necessary toV start the vehicle;A This action takes place immediately on turning the operating h'andivheel 111 and because of the peculiar shape ofthe slot in rocking lever it effectively looks the change speed lever in a neutral position With the "amount of travel necessary. f Where aball change speed lever is used, the same principle for'locking` it the neutral pOsition applies. y' y Likewise before the gear. lever is entirely smallest p 4free to be operated at Will, vthe handWheel lt must be fully brought back to starting position, lthereby a'ford'ing assuranceto the operatorthait the legs 26 `have been folded quite clear Vand theKV jack fully returned. tor

eau-Clear posit-,ione n Win be furthercvobi vious that this 4clevi'ce constitutes also an anti-theft device it 'being'necessary mmmsections with a device to be lifted and sus` pending said body portion from such device, legs carried by the other section engageable with a support whereby separation of said sections results in lifting of the device with which the first section is connected, and means whereby saidlegs are automatically elevated above said support when said sections are moved towards one another.

2. A liftin jack comprising a body portion compose connecting said sectionseifective to separate them, means connecting one of saidsections with a device to be lifted and suspending said body portion from such device, legs carried by the other section normally held suspended with said body portion and adapted to be lowered into engagement with a support whereby separation` of the sections results in lifting of said device, and means whereby said legs are automatically lowered into engagement with said support when said sections are separated.

3. A lifting jack comprising a body portion composed of a pair of sections movable towards and awa from each other, means connecting one o said sectionswith a device to be lifted and suspending said body portion from such device, legs carried by the other section normally held suspended with said body portion and adapted to be lowered into engagement with a support whereby separation of said sections results in lifting of said device, and cam means whereby said legs are automatically lowered and raised when the sections of said body portion are separated and moved together, respectively.

4t. A lifting jack comprising a body portion composed of a pair of sections connected for movement. towards and away of a pair of sections, means from one another, means connecting one of said sections with a device to be li ted and suspending said body portion from such device, legs pivoted to the other section, cam means on said legs, and cam means on said iirst mentioned section cooperating with the cam means on said legs to swing the latter upon their pivots and hold them suspended with the body portion when the sections are moved towards one another and to lower them into engagement with a support when the sections are separated.

5. A lifting jack comprising a body portion composed of a pair of sections rotatable with respect to each other and also movable towards and away from one another, a connection betweensaid sections for moving them towards and away 'from one another, an operator rotatable to actuate said connection, a portion of said operator having another movement and means operating between said sectionsto deny and permit relative rotation thereof, said means being actuated by movements of the last named portionof said operator.

6. The combination with a vehicle -including a gear shiftcontrol device having a neutral position; of a jack carried by said vehicle for lifting the latter, and means be tween said jackand said gear shift control device operating to hold the latter in neutral position when the vehicle is raised by said jack.

"7. The Vcombination with a vehicle including a gear shift control device having a neutral position; of a jack carried by said vehicle for lifting the latter, and means between said jacl; and said control device operating automatically when the jack is actuated to lift the vehicle to move said device to neutral position.

ln witness whereof we have signed this specication in the presence of two witnesses.

HENRY STUART KEIGHTLEY. GEORGE ARTHUR GODFREY. Witnesses:

ALBERT W. Scorr, M. W. A. BoRnsMANN. 

